@keyframes bounce  
    from,
    20%,
    53%,
    to  
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1)
        transform: translate3d(0, 0, 0)
    40%,
    43%  
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06)
        transform: translate3d(0, -30px, 0) scaleY(1.1)
    70%  
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06)
        transform: translate3d(0, -15px, 0) scaleY(1.05)


    80%  
        transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1)
        transform: translate3d(0, 0, 0) scaleY(0.95)
    90%  
        transform: translate3d(0, -4px, 0) scaleY(1.02)
         
         